The table presents the mean monthly temperatures ($^\circ\text{C}$) for Tokyo and Sydney over one year.
(a)[2]
Finish the scatter diagram. The first eight points have already been plotted for you.
(b)[1]
What kind of correlation does the scatter diagram show?
(c)[1]
Draw in a line of best fit.
(d)[1]
In the next year, the mean temperature in Sydney in May was $15^\circ\text{C}$. Use your line of best fit to estimate the mean temperature in Tokyo for that May.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Accurate placement of points $(16,23),(18,18),(20,12),(21,8)$” …